Extractability and nutritional value of leaf protein from tropical aquatic plants.
In a study conducted on the extraction of protein from the leaves of 30 freshwater aquatic plants, the highest standing crop fresh yield was found in Typha latifolia (2650 g/m2). The Bio-Medical Data Processing (BMDP) K-means clustering program with K = 2 showed that 11 of the 30 plants had a high protein nitrogen extractability as well as a high nitrogen content of the extracted protein. Among these, leaf protein from Allmania nodiflora had the highest content of crude protein (62.7%) and beta-carotene (782.4 micrograms/g). Leaf protein prepared from Hygrophila spinosa, Ottelia alismoides and Polygonum barbatum had low in-vitro digestibility. The levels of alkaloids and polyphenols were lower in the extracted protein compared to that present in the original leaf sample.
Dewanji
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Biological Sciences Division, Indian Statistical Institute, Calcutta, India.
Chanda
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Si
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Barik
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Matai
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D004044:Dietary Proteins / Q000032:analysis*; D004063:Digestion; D005618:Fresh Water; D009584:Nitrogen / Q000032:analysis; D009753:Nutritive Value; D010636:Phenols / Q000032:analysis; D018515:Plant Leaves / Q000737:chemistry*; D010945:Plants, Edible; D019207:beta Carotene / Q000032:analysis
D004044:Dietary Proteins; D010636:Phenols; D019207:beta Carotene; D009584:Nitrogen